1	package antlr;
2	
3	/**
4	 * <b>SOFTWARE RIGHTS</b>
5	 * <p>
6	 * ANTLR 2.5.0 MageLang Institute, 1998
7	 * <p>
8	 * We reserve no legal rights to the ANTLR--it is fully in the
9	 * public domain. An individual or company may do whatever
10	 * they wish with source code distributed with ANTLR or the
11	 * code generated by ANTLR, including the incorporation of
12	 * ANTLR, or its output, into commerical software.
13	 * <p>
14	 * We encourage users to develop software with ANTLR. However,
15	 * we do ask that credit is given to us for developing
16	 * ANTLR. By "credit", we mean that if you use ANTLR or
17	 * incorporate any source code into one of your programs
18	 * (commercial product, research project, or otherwise) that
19	 * you acknowledge this fact somewhere in the documentation,
20	 * research report, etc... If you like ANTLR and have
21	 * developed a nice tool with the output, please mention that
22	 * you developed it using ANTLR. In addition, we ask that the
23	 * headers remain intact in our source code. As long as these
24	 * guidelines are kept, we expect to continue enhancing this
25	 * system and expect to make other tools available as they are
26	 * completed.
27	 * <p>
28	 * The ANTLR gang:
29	 * @version ANTLR 2.5.0 MageLang Institute, 1998
30	 * @author Terence Parr, <a href=http://www.MageLang.com>MageLang Institute</a>
31	 * @author <br>John Lilley, <a href=http://www.Empathy.com>Empathy Software</a>
32	 */
33	import java.util.Hashtable;
34	import java.util.Enumeration;
35	import antlr.collections.impl.Vector;
36	
37	/** Interface that describes the set of defined tokens */
38	interface TokenManager {
39	
40	
41		/** define a token symbol */
42		public void define(TokenSymbol ts);
43		/** Get the name of the token manager */
44		public String getName();
45		/** Get a token string by index */
46		public String getTokenStringAt(int idx);
47		/** Get the TokenSymbol for a string */
48		public TokenSymbol getTokenSymbol(String sym);
49		/** Get an enumerator over the symbol table */
50		public Enumeration getTokenSymbolElements();
51		/** Get the token vocabulary (read-only).
52		 * @return A Vector of Strings indexed by token type */
53		public Vector getVocabulary();
54		/** Is this token manager read-only? */
55		public boolean isReadOnly();
56		/** Get the highest token type in use */
57		public int maxTokenType();
58		/** Get the next unused token type */
59		public int nextTokenType();
60		/** Is a token symbol defined? */
61		public boolean tokenDefined(String symbol);
62	}
63